Oil change reminder for key rings



FIG. 1 is a front elevational view of an oil change reminder for key rings showing my new design;

FIG. 2 is a top plan view thereof, with the bottom being a mirror image;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof; and,

FIG. 5 is a rear elevational view thereof. 

The ornamental design for an oil change reminder for key rings, as shown and described. 